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Deliverability

How to keep your bounce rate under 2%

MO
Written by
Maya Okonkwo · Head of Deliverability
Apr 11, 2026 · 5 min read

Your bounce rate is one of the clearest signals mailbox providers use to judge you. Most healthy senders sit under 2%; cross it and filtering starts. Here's how to stay safe.

Why 2% is the threshold

Around 2% is the widely-accepted safe ceiling for B2B senders. Cold outreach to unverified lists often runs far higher because the data is older and unchecked. Sustained high bounce rates can throttle or block your sending entirely.

What pushes you over the line

  • Old lists where addresses have gone dead.
  • Purchased or scraped lists full of invalids.
  • Typos captured at signup (gmial.com).
  • Role and disposable addresses that never engage.

The workflow that keeps it low

Verify every list before you send, validate new contacts at the point of capture, and re-verify anything older than 90 days. A flat-priced tool makes verifying-before-every-send affordable, instead of something you ration.

See how clean your list really isFree preview of your first 100 contacts — no credit card.
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